Syringe Pump Control With Pressure Limiting for Regional Anesthesia
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Solution Overview
Problem
Current methods for administering regional anesthesia require multiple individuals to operate the needle and fluid flow device, and lack objective measurement of injection pressure, leading to potential nerve damage and inefficiencies.
Innovation Solution
A system with a hands-free switch and pump mechanism, allowing a single operator to control fluid injection and aspiration using foot pedals, and incorporating a pressure threshold to prevent excessive fluid pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple individuals are used to operate the needle and fluid flow device, then the precision of needle positioning and fluid administration can be maintained, but the complexity of the procedure increases and efficiency decreases
Solution Approach 1:
The system enables self-service operation where the single operator controls both needle positioning and fluid administration through automated feedback mechanisms. The paresthesia detection system automatically provides feedback to the operator, eliminating the need for multiple personnel to monitor and coordinate the procedure.
Solution Approach 2:
The system incorporates real-time feedback through paresthesia detection during needle insertion. This feedback loop allows a single operator to precisely control needle positioning by responding to patient sensations, maintaining the precision that previously required multiple operators while simplifying the procedural complexity.
2Ease of manufacture
If manual needle insertion and infusion are used, then the procedure can be performed with simple equipment, but the risk of nerve damage increases due to inaccurate needle positioning
Solution Approach 1:
The system incorporates real-time feedback through paresthesia detection during needle insertion. This feedback loop allows the operator to precisely control needle positioning by responding to patient sensations, maintaining the precision that previously required multiple operators while simplifying the procedural complexity.
Solution Approach 2:
The system monitors and controls injection pressure parameters to prevent excessive pressure that could cause nerve damage. By maintaining pressure within safe thresholds, the system reduces reliability risks while keeping the equipment relatively simple.
3Productivity
If injection pressure is not monitored, then the procedure can be performed quickly without additional measurement devices, but the risk of nerve damage due to excessive pressure increases
Solution Approach 1:
The pressure monitoring system provides real-time feedback to the operator during fluid administration. This allows for immediate adjustment of injection rate to maintain pressure within safe thresholds, preventing nerve damage while maintaining procedural efficiency through automated monitoring.
Solution Approach 2:
The pressure monitoring and alert system operates autonomously, automatically detecting and warning of excessive pressure conditions without requiring additional manual measurement steps. This self-service capability maintains procedure speed while eliminating the harmful effect of unmonitored pressure.
Data Source
AI summary
A system for controllably administering fluid to a patient. The system including a syringe, a pump, and a user input. The syringe including a plunger with a first mechanical interface and a syringe body for holding fluids. The pump includes a second mechanical interface which interfaces with the plunger via the first mechanical interface to advance the plunger relative to the body of said syringe to controllably administer fluid to the patient. The user input connects to the pump and allows the user to operate the pump to start and stop the translation of the plunger. The syringe includes a mechanical connector configured such that the syringe is attachable to and detachable from the pump and wherein when the syringe is detached from the pump, the plunger of the syringe may be operated manually by the user.